Shire



(No Model.) 2 Sheets-Sheet 1. A. B. POWLER 8v G. E. WARREN.

HEEL BURNISHING MACHINE.-

No. 452,345. Patented May 12, 1891.

(No Model.) 2 sheets-sheet 2.. A. B. FOWLER 8U Gr. E. WARREN.

HEEL BURNISHING MACHINE No. 452,345. Patented May 12,1891.

Inval-Ninfa. wmf .L

Witnesses.

UNITED STATES PATENT OFFICE.

ALFRED B. FOVLER AND GEORGE E. \VARREN, OF EXETER, NEV HAMP- SHIRE, VASSIGENORS TO THE ROCKINGHAM SAME PLACE.

MACHINE COMPANY, on

HEEL-BURNISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 452,345, dated May 12, 1891.

Application led October 16, 1890. Serial No. 368,293- (No model.)

T0 all whom it may concern.-

Be it known that we, ALFRED 13. FowLER and GEORGE E. WARREN, both citizens of the United States, and residents of Exeter, in the county of Rockingham and State of New Hampshire, have jointly invented new and useful Improvements in Heel-Burnishing Machines, ofwhich the following, taken in connection with the accompanying drawings, is a specification. v

This invention'relates to improvements in heel-burnishing machines, and it is carried out as follows, reference being had to the accompanying drawings, wherein*a Figure l represents a side elevation of the machine, partly shown in section. Fig. 2 represents an enlarged detail section on the line X X shown in Fig. 1. Fig. 3 represents a top view of the cam for regulating the pressure of the burnishing-tool on the heel. Fig. l represents a sidepelevation of the cam by means of which the pressure-regulating cam is longitudinally moved. Fig. 5 iepresentsa detail plan View Vof the jointed pressure and tool-carrying levers, and Fig. 6 represents a perspective view of the jointed levers and the sleeve to which they are pivoted.

Similar letters refer to similar parts wher-z ever they occur on the different parts of the drawings.

A is the frame or standard of the machine, as usual, having secured to its front portion a bracket A', on which is arranged a suitable jack B, having devices for securing to it a shoe C, the heel c of which is to be burnished. The jack may be a single or duplex one, as maybe desired, and the mechanism for clamping and securing the shoe in position on such jack may be made in any suitable or well-y 'known manner without departing from the essence of our invention.

A is a rear standard secured in a suitable manner to the main frame or standard A, as

shown in Fig. 1. D is the driving-shaft, jour-1 naled in bearings a a and provided with fast and loose pulleys d d', as is common in' machinery of this kind. A rotary motion is 1mparted to the shaft D byhelt power, as usual,

and a suitable belt-shipperis toy be used in connection with the pulleys d d for the purpose of slipping the belt from one to the other pulley, as usual, Such belt-shipper, however, is not represented in the drawings.

To the forward end of the driving-shaft D is secured a disk D', provided with a crankpin D, to which is pivoted the lower end of a connecting-rod E, having its upper end pivoted to the lower arm or lever F on a toothed segment F, that is journaled on the pin'or shaft f, as shown in Fig. 1. The teeth of the segment-gear F mesh in the teeth of a pinion G, secured to the rock-shaftg, that carries the burnishing-tool, and by this arrangement a rocking motion is imparted to said shaftrg from the driving-shaft D for the purpose of oscillating the burnisher-tool from breast to breast of the boot or shoe heel. The shaft g is journaled in stationarybearings a3 a4,pref i erably secured to the top of the standard A. To the rock-shaft g are secured forked arms G and G in which are guided, respectively, the pressure and tool-carrying levers H and l-l, which are pivoted to a hub or tool-carrying sleeve I at t', as shown in Figs.. 1 and 5.

The sleeve I is splined upon the shaft g and is longitudinally adjustable thereon for the purpose of carrying the burnisher-tool h (that is secured to the forward end of the lever H) from the top lift to the heel-seat of the heel during the operation of burnishing the latter. To the jointed levers H and H is secured a flat or leaf spring K by means of the respective adjustable set-screws 7.: k', or in any other suitable or equivalent manner. The leaf-spring extends or spans over the jointed portions of the levers, and since the ends of the spring connect, respectively, with said levers H H it will be obvious that the motion of one lever is yieldingly imparted to the other.

On the rear end of Vthe shaft gis loosely journaled the heel former or cam L, and against its curved surface is guided and brought to bear a small Wheel or roller 7L, journaled on the rear end of the lever H, as shown in Figs. 1 and 5.

t" is a spring attached to the sleeve I and ladapted to bear against the top of the lever l IOO shown in Fig. l. The curvature of the cam or former L in a longitudinal direction is the reverse of the longitudinal curvature of the heel-that is, where the heel is concave the cam is convex, and vice versa. n a lateral direction the curvature ol' said cam corresponds inversely to the curvature of the heel to be burnished.

` By moving the jointed levers Il Il in a longitudinal direction the wheel 7L will be guided 011 the cam L, and thuscause the burnishertool 71. to be fed from the top lift to heel-seat of the heel, and held in contact with the latter with a uniform pressure, which may be regulated by adjusting the tension of the spring K. During` such feed mot-ion of the burnisher-tool it is also oseillated from breast to breast of the heel by the mechanism herein above described.

The mechanism for automatically feeding the burnisher-tool from the top lift to the heel-seat of thc heel is constructed and arranged and follows: On the driving-shaft D is loosely mounted a worm M, to which is secured, preferably, one section N of a frictionclutch, adapted to be engaged, preferably, by the other section N', which is splined on the shai t D and capable of longitudinal ad justment thereon, as is common in section devices. The clutch N has au annular groove n on its hub adapted to receive theupper end of a shipper-arm O, secured to a rod 0', adapted to slide in stationary bearings and provided with a spring O, by means of which the clutch-sections N N are normally coupled together, as shown in Fig. l. For the purpose of disconnecting the section N from the section N a ireadle-lever P is made use of, which lever is pivoted at l and has connected to its inner end a rod P, on which is a pin or projection 11, adapted to come in contact with a lever O3, pivoted to the standard A at O", and having one of its ends connected to the shipper-rod O, by which arrangement the latter is caused to move in the direction shown by arrow in Fig. l, when the treadle-lever F is depressed, thereby causing the section N to be disconnected from the section N, and thus stopping the rotation of the worm M. The said worm M meshes in the teeth of a worm-wheel M', the shaft of which is journaled in a stationary bearing attached to the standard A or other stationary part of the machine. To one side of the said worm-wheel M' is secured or made in one piece a cam-disk m, having a cam-groove m', adapted to receive a pin or pin and roll q on the lower end of a lever Q, the upper end of which is connected to a rod Q', adapted to slide in a bearing A3, secured to the upper end of Jthe standard A, as shown in Fig. l, said rod having a projection Q, fitting into a portion ot' an annular groove I on the sleeve I, to which the levers ll II are jointed. The lever Q is adj ustably pivoted to a verticallygrooved portion A1 of the standard A for the purpose of adjust-ing the feed ot the burnisher-tool according to the height of the heel, and for this purpose a slot Q is madcin said lever Q, in which is adjustable the pivot-bolt q', the inner end of which is provided with a head il, adapted to be adjusted up and down in the grooved block A1, and secured in position by means ot a nut or handle Q3, as shown in Figs. l and 2.

For the purpose of automatically raising the burnisher-tool 7L above the heel of the boot or shoe after it is burnished, so as to enable the shoe to be removed from the jack and replaced by another, we make use of the following automatic mechanism: To the shaft of the Worm-wheel M is secured a circular disk R, (shown in Figs. 2 and 4,) havinga recess R on its periphery, as shown in Fig. 4. To the standard f or its block or portion Al is plvoted at Rll a lever R3, having a pin or pin and roll fr in its lower end, adapted to bear against the periphery of the disk R by the influence of a spring R4, one end of which is attached to the standard A and the other end to theleverRi. The upperend of the said lever R3 is pivoted to the heel-former or cam L at Z, as shown in Fig. 2, by which arrange ment the cam or heel-former L is moved once during the revolution of the disk R to the position shown in Fig. l, at which time the pin r is forced by the spring Rl into the recess R', and the wheel or roller 7b forced and held by the spring t" against a reduced portion of said former L or against the shaft g, thus tipping the levers ll Il so as to raise the burnisher-tool 7L above the boot or shoe heel, as shown in Fig. l, to permit the burnished shoe to be removed and replaced by another. The rod P,when in its normal position, is adapted to lock and hold the jack in a stationary position, as is common in burnishing-ma chines of this kind.

The operation ofthe machine is as follows: The tool being withdrawn, as described, a shoe is secured in position in the jack and the feed mechanism of the burnisher-tool is started by relieving the pressure on the treadle-lever l), causing the cam m m on the worm-Wheel shaft, acting upon the lever Q, to move the former or cam L backward, and thereby bringing the tool 7L in contact with the heel, preferably at its top-lift portion, and the tool is oscillated and fed to the heel-seat and back to its starting-point, when it is automatically withdrawn from contact by the action of the lever R3 and its spring R4. Pressure upon the treadle-lever releases the jack and stops the feed-motion, when the shoe may be removed and another one put in its place.

llaving thus fully described the nature, construction, and operation of our invention, we wish to secure by Letters Patent and claiml. In a burnishing-machine, the combination of an oscillating shaft, a sleeve movable along the length of the shaft and oscillating therewith, a former or cam, and a pair of spring-pressed levers pivoted to said sleeve IOO IIC

and oscillating withy the shaft, one of said levers having a roller or Wheel acting on the former or cam and the other having a bur nishing-tool, substantially as described.

2. In a burnishing-machine, the combination of an oscillatingshaft, aformer orcarn, and a pair of jointed spring-pressed levers oscillating in unison with the shaft' and movable longitudinally independently of the said shaft, one of said levers having a roller or Wheel acting on the former or cam and the other lever having a burnishing-tool, substantially as described.

3. In a burnishing-machine, the combination of an oscillating shaft, a former or cam, a pair of jointed levers oscillating with the shaft and movable lengthwise independent-ly of the latter, and a leaf -spring extending across the joint. of the levers and connected to thelatter, one of said levers having a roller or Wheel acting on the former or cam and the other lever having a burnishingitool, substantially as described.

4. In a burnishing-Inachine, the combination of an oscillating shaft,a former or cam, a sleeve turning with and movable along the length of the shaft, a pair of spring-pressed levers jointed tothe sleeve and one carrying a roller or wheel acting on the former or cam and the other carrying a burnishing-tool, a main drive-shaft, and devices actuated by the shaft for oscillating the sleeve-carrying shaft and moving the sleeve along the length thereof, substantially as described.

In testimony whereof We have signed our names to this specification, in the presence of two subscribing Witnesses, on this 16thv day of August, A. D. 1890.

ALFRED B. FOWLER. GEORGE E. VARREN.

Witnesses:

MYRTLE DOLLOFF, HARRY H. TAYLOR. 

